Finding the Fourth Proportional to 22,171.61, 30,594.13 and 12,612.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,171.61 : 30,594.13 = 12,612.72 : x
2. Step 2: Convert to fraction form
   22,171.61/30,594.13 = 12,612.72/x
3. Step 3: Cross multiply
   22,171.61x = 30,594.13 × 12,612.72
4. Step 4: Simplify right side
   22,171.61x = 385,875,042.36
5. Step 5: Solve for x
   x = 385,875,042.36/22,171.61
6. Step 6: Final answer
   x = 17,404.02